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Re: Extracting data from datafiles

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From	Michael <proximum@land.ru>
Newsgroups	comp.graphics.apps.gnuplot
Subject	Re: Extracting data from datafiles
Date	Mon, 20 May 2013 22:44:12 +0700
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19.05.2013 22:32, sander.peter@lycos.com пишет:
> Hi,
>
> I have many long datafiles like this:
>
> ...
> _Flags = 5
> _StepTime = 0.2
> _StepSize = 0.024
> _2d = 8.7522
> _LineName = "Cu KA1-HS-Min"
> _X-Counts
> 15.000	493.2
> 15.024	485.2
> 15.048	514.3
> 15.072	453.2
> 15.096	443.2
> 15.120	470.2
> 15.144	432.2
> 15.168	448.2
> ...
>
> Now I'd like to use the value of StepTime and 2d (2.2 and 8.7522 in this case) as a variable affecting the data in both columns, before plotting.
>
> How to get these two numbers out of each datafile ?
>
> Thanks already

You can use some external tools: grep, sed, or programming languages: 
perl, python, or any other language, to extract data from your input 
files. I, for example, am using perl for creating both datasets and 
gnuplot scripts.

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Extracting data from datafiles sander.peter@lycos.com - 2013-05-19 08:32 -0700
  Re: Extracting data from datafiles sfeam <sfeam@users.sourceforge.net> - 2013-05-19 10:04 -0700
    Re: Extracting data from datafiles sander.peter@lycos.com - 2013-05-19 13:07 -0700
  Re: Extracting data from datafiles Michael <proximum@land.ru> - 2013-05-20 22:44 +0700

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